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EP 3 987 835 A1

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(43) Date of publication: 27.04.2022 Bulletin 2022/17 (21) Application number: 20789700.0 (22) Date of filing: 02.10.2020

(51) International Patent Classification (IPC):  H04W 12/06(2021.01) H04W 48/08(2009.01) H04W 84/04(2009.01) H04W 36/14(2009.01) H04W 48/18(2009.01) (52) Cooperative Patent Classification (CPC): H04W 48/18; H04W 84/045; H04W 12/08; H04W 8/186; H04W 12/76; H04W 36/14; H04W 36/0038 (86) International application number: PCT/JP2020/037629 (87) International publication number: WO 2021/066170 (08.04.2021 Gazette 2021/14)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 04.10.2019 GB 201914403 (71) Applicant: NEC Corporation 108-8001 Tokyo (JP)	(72) Inventors: CHEN Yuhua Leatherhead, Surrey KT227SA (GB) GUPTA Neeraj Leatherhead, Surrey KT227SA (GB) SINGH Jagdeep Ahluwalia Leatherhead, Surrey KT227SA (GB) (74) Representative: Smith, Jeremy et al Mathys & Squire The Shard 32 London Bridge Street London SE1 9SG London SE1 9SG (GB)